Coronavirus Disease 2019 (COVID-19) | Covid | CDC
COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly.
COVID-19 - Wikipedia
People with the COVID-19 infection may have different symptoms, and their symptoms may change over time.
Coronavirus disease (COVID-19)
Nov 27, 2025 · COVID-19 is caused by the SARS-CoV-2 virus, which spreads through the air in infectious respiratory particles from an infected person. Transmission is more likely in close contact …
COVID-19 | Cause, Symptoms, Treatment, & Prevention | Britannica
1 day ago · There is no cure for COVID-19, but individuals can be protected against severe illness through vaccination. Learn about the symptoms, treatment, and prevention of COVID-19.
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
5 days ago · Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
What Are the Current COVID-19 Guidelines? - Cleveland Clinic Health ...
Oct 3, 2025 · COVID-19 can be serious for some people, but anyone can get it — even if you’re in good health.
Coronavirus (COVID-19): Symptoms, Transmission, Treatment and More
Jul 26, 2024 · In 2019, COVID-19 began generating headlines worldwide because of its unprecedented transmission speed. Its origins can be traced back to a food market in Wuhan, China, in December …
COVID-19: From How You Get It to How You Treat It - Verywell Health
Feb 20, 2026 · COVID-19 is a contagious disease caused by the SARS-CoV-2 virus. While COVID-19 usually causes mild to moderate respiratory symptoms, older adults and people with underlying …
Symptoms of COVID-19 | COVID-19 | CDC
Mar 10, 2025 · People with COVID-19 have a wide range of symptoms ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus. Symptoms may start as …
COVID-19 - Johns Hopkins Medicine
COVID-19 is the disease caused by SARS-CoV-2, the coronavirus that emerged in December 2019. Learn about symptoms, diagnosis, treatment and prevention.